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प्रश्न
What is the mechanism by which the AIDS virus causes deficiency of immune system of the infected person?
उत्तर
- After entering the body of an infected person, the AIDS virus enters the macrophage.
- Here, its RNA genome, with the help of the reverse transcriptase enzyme, forms viral DNA by replication, which enters the DNA in the cell and directs the formation of virus particles in the infected cells.
- The macrophage continues to produce the virus and acts as a production factory for HIV.
- HIV enters the helper T-lymphocyte and replicates itself and produces progeny viruses.
- The progeny viruses present in the blood attack other helper T-lymphocytes.
- This process is repeated again and again as a result of which the number of T-lymphocytes in the body of the infected person keeps decreasing.
- The patient continuously suffers from fever and diarrhea, weight keeps decreasing, the patient's immunity becomes so low that he is unable to fight these types of infections.
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संबंधित प्रश्न
Explain the process of replication of a retrovirus after it gains entry into the human body.
If the advise is not followed by the patient, there is an apprehension that the patient might contract a disease that would destroy the immune system of his/her body. Explain with the help of schematic diagram only how the immune system would get affected and destroyed.
What does the abbreviation AIDS stand for?
Match the following
| Column I | Column II |
| a. AIDS | i. Antibody production |
| b. Lysozyme | ii. Activation of B-cells |
| c. B-cells | iii. Immunoglobulin |
| d. T-helper cells | iv. Tears |
| e. Antibody | v. Immunodeficiency |
When the ELISA test was conducted on an immune-suppressed person, he tested positive for a pathogen.
- Identify the disease the patient is suffering from.
- Name the causative entity.
- Mention the cells of the body that are attacked by the pathogen.
Explain the clinical manifestation of AIDS.
Expand the following.
HIV-
HIV-
AIDS-
Value based question
How can informational efforts change people’s HIV knowledge and behaviour?
Which one of the following groups includes sexually transmitted diseases caused by bacteria only?
Identify the correct statements from the following.
What is the causative agent of syphilis?
The causative agent of malaria is a ______
Which pathogen causes gonorrhoea?
All of the following are modes of transmission of HIV, EXCEPT ______.
From the sexually transmitted diseases mentioned below, identify the one which does not specifically affect the sex organs ______.
STD/VD/UTI are ______.
Which of the following is correct regarding HIV, hepatitis B, gonorrhoea, trichomoniasis?
Confirmatory test for STDs is ______.
The common means of transmission of AIDS is ______.
The sexually transmitted disease, that can affect both the male and the female genitals and may damage the eyes of babies born of infected mothers is ______.
A sexually transmitted disease symptomised by the development of chancre on the genitals is caused by the infection of ______.
Which of the following diseases is not sexually transmitted?
AIDS is a sexually transmitted disease caused due to an infection by a ______
Both sickle cells anaemia and Huntington chorea are:
Which of the following sexually transmitted diseases is NOT completely curable?
Which of the following will not be useful as a prevention in acquiring STDs?
STDs can be considered as self-invited diseases. Comment.
STDs are a threat to reproductive health. Describe any two such diseases and suggest preventive measures.
Given below are some sexually transmitted infections. Identify the number of diseases that are caused by bacteria.
Syphilis, Chlamydiasis, Trichomoniasis, HIV, Hepatitis-B, Genital herpes, genital warts, Gonorthoea.
Which one of the following group include sexually transmitted disease?
Expand the following abbreviation:
PID
|
Sapna has been diagnosed with an infection of the reproductive tract caused by bacteria. She experiences burning sensation during urination, pain around her genitalia and observes pus containing discharge. Her doctor tells her that this infection has an incubation period of two to five days but can be cured. |
What is the biological name of the causative agent of the disease Sapna is suffering from?
All STDs do not affect the genital organs. Justify the statement.
